Dr. Cheung Yau Kar, Rachel Consultant, Clinical Associate Professor (honorary), Team Head for Urogynaecology
(852) 3505 2812 rachelcheung@cuhk.edu.hk

Qualifications

MBChB (CUHK), MRCOG, MHKCOG, FHKAM (O&G), FHKCOG, Subspecialist in Urogynaeoclogy (HKCOG)

Other Positions

Council member of Hong Kong Urogynaecology Association (HKUGA)

Clinical & Research Interest

  • Clinical research in management of pelvic floor disorders and urinary incontinence of women
  • Quality of life in pelvic floor disorders, urinary incontinence and other gynaecological problems
  • Clinical research in perineal ultrasound imaging on pelvic floor anatomy in female pelvic floor disorders
  • Clinical research in general gynaecology
1
Automated segmentation and measurement of the female pelvic floor from the mid-sagittal plane of 3D ultrasound volumes Szentimrey Z, Ameri G, Hong CX, Cheung RYK, Ukwatta E, Eltahawi A Med Phys. 2023 Oct;50(10):6215-6227
2
Treatment outcome of women with urodynamic mixed urinary incontinence: an observational study Yung KK, Cheung RYK, Wan OYK, Lee LLL, Choy KW, Chan SSC Int Urogynecol J. 2023 Mar;34(3):665-673
3
Response to the letter to the editor regarding‘effect ofadditional acupuncture to pelvic floor exercise on urinaryincontinence’Wan OYK et al. (2022): Neurourol Urodyn.Wan OYK et al. Wan OYK, Cheung RYK, Law MPM, Lee L, Wang RCC, Chan SSC Neurourol Urodyn. 2022 Sep;41(7):1635-1636
4
Treatment outcome of women with urodynamic mixed urinary incontinence: an observational study. Yung KK, Cheung RYK, Wan OYK, Lee LLL, Choy KW, Chan SSC. Int Urogynecol J. 2022 Apr 21. doi: 10.1007/s00192-022-05097-6. Epub ahead of print. PMID: 35445809.
5
Effect of additional acupuncture to pelvic floor exercise on urinary incontinence: A randomized controlled trial. Wan OYK, Cheung RYK, Law MPM, Lee LL, Wang RCC, Chan SSC. Neurourol Urodyn. 2022 Mar 30. doi: 10.1002/nau.24918. Epub ahead of print. PMID: 35353915.
6
Vaginal mesh surgery: a review of current practice. Chau OSY, Cheung RYK Hong Kong J Gynaecol Obstet Midwifery 2022; 22(1):37-42
7
Intermediate- to long-term outcomes of transvaginal mesh for treatment of Asian women with pelvic organ prolapse Chan SSS, Wan OYW, Choy KW, Cheung RYK Hong Kong Med J. 2021 Dec;27(6):413-420
8
Women with advanced pelvic organ prolapse and levator ani muscle avulsion would significantly benefit from mesh repair surgery Wong NKL, Cheung RYK, Lee LL, Wan OYK, Choy KW, Chan SSC Ultrasound Obstet Gynecol. 2021 Apr;57(4):631-638
9
2020 Hong Kong College of Obstetricians and Gynaecologists guideline on investigations of premenopausal women with abnormal uterine bleeding Lee JHS, Cheng EOL, Choi KM, Ngu SF, Cheung RYK Hong Kong Med J. 2020 Dec;26(6):520-525
10
Pelvic organ prolapse in Caucasian and Asian women: a comparative study Cheung RYK, Chan SSC, Shek KL, Chung TKH, HP Dietz Ultrasound Obstet Gynecol. 2019 Apr;53(4):541-545
11
The effect of time interval of vaginal ring pessary replacement for pelvic organ prolapse on complications and patient satisfaction: A randomised controlled trial Tam MS, Lee VYT, Yu ELM, Wan RSF, Tang JSM, He JMY, Lui LKY, Chiu KP, Cheung RYK, Lee KW Maturitas. 2019 Oct;128:29-35
12
Prevalence of obstetric anal sphincter injury following vaginal delivery in primiparous women: a retrospective analysis. Kwok SPK, Wan OYK, Cheung RYK, Lee LL, Chung JPW, Chan SSC. Hong Kong Med J. 2019 Aug;25(4):271-8.
13
Pelvic Organ Prolapse in Caucasian and Asian Women: a Comparative Study. Cheung RYK, Chan SSC, Shek KL, Chung TKH, Dietz HP. Ultrasound Obstet Gynecol 2019;53:541-545.
14
Mesh-related complications from reconstructive surgery for pelvic organ prolapse in Chinese patients in Hong Kong Wan OYK, Chan SSC, Cheung RYK, Chung TKH Hong Kong Med J. 2018 Aug;24(4):369-377
15
Prevalence of levator ani muscle avulsion and effect on quality of life in women with pelvic organ prolapse Yu CH, Chan SSC, Cheung RYK, Chung TKH Int Urogynecol J. 2018 May;29(5):729-733
16
Longitudinal pelvic floor biometry: which factors affect it? Chan SSC, Cheung RYK, Lee LLL, Chung TKH Ultrasound Obstet Gynecol. 2018 Feb;51(2):246-252
17
Predictors for dislodgment of vaginal pessary within one year in women with pelvic organ prolapse Cheung RYK, Lee LLL, Chung TKH, Chan SSC Maturitas. 2018 Feb;108:53-57
18
Predictors for Dislodgement of Vaginal Pessary within One Year in Women with Pelvic Organ Prolapse. Cheung RYK, Lee LL, Chung TKH, Chan SSC. Maturitas 2018;108:53-57
19
An observational follow-up study on pelvic floor disorders to 3-5 years after delivery Ng K, Cheung RYK, Lee LL, Chung TKH, Chan SSC Int Urogynecol J. 2017 Sep;28(9):1393-1399
20
Levator ani muscle avulsion is a risk factor for vaginal pessary expulsion within 1 year for pelvic organ prolapse. Cheung RY, Lee JHS, Lee LL, Chung TK, Chan SS. Ultrasound Obstet Gynecol. 2017 Dec;50(6):776-780.
21
Longitudinal follow-up of levator ani muscle avulsion: does a second delivery affect it? Chan SSC, Cheung RYK, Lee LL, Choy RKW, Chung TKH Ultrasound Obstet Gynecol. 2017 Jul;50(1):110-115
22
Pelvic Floor Disorders Related to Pregnancy: a Prospective Observational Study. Chan SSC, Choy RKW, Yiu KW, Cheung RYK, Leung TY. Hong Kong Med J 2017;23 S2:42-46
23
A Review on Surgical Treatment for Pelvic Organ Prolapse. Chan SS, Cheung RY. HKJGOM 2017;17:1-8
24
Levator Ani Muscle Avulsion is a Risk Factor for Expulsion within 1 Year of Vaginal Pessary Placed for Pelvic Organ Prolapse. Cheung RYK, Lee JHS, Lee LL, Chung TKH, Chan SS. Ultrasound Obstet Gynecol 2017;50:776-780
25
Vaginal Pessary in Women with Symptomatic Pelvic Organ Prolapse: A Randomized Controlled Trial. Cheung RYK, Lee JHS, Lee LLL, Chung TKH, Chan SSC Obstet Gynecol Jul 2016;128(1): 73 - 80
26
Antenatal Pelvic Floor Biometry is Related to Levator Ani Muscle Injury. Chan SSC, Cheung RYK, Yiu AKW, Lee LLL, Chung TKH Ultrasound Obst Gyn Oct 2016;48(4): 520 - 525
27
Efficacy and Outcomes of Transobturator Tension-Free Vaginal Tape with or without Concomitant Pelvic Floor Repair Surgery for Urinary Stress Incontinence: Five-year Follow-up. Law SM, Cheung RYK, Chung TKH, Chan SSC J.HK.Med.Assn. 2015;21(4): 333 - 338
28
Pelvic Floor Muscle Biometry and Pelvic Organ Mobility in East Asian and Caucasian Nulliparae. Cheung RYK, Shek KL, Chan SSC, Chung TKH, Dietz HP Ultrasound Obst Gyn 2015;45(5): 599 - 604
29
Prevalence of Levator Ani Muscle Injury and Health-related Quality of Life in Primiparous Chinese Women after Instrumental Delivery. Chung MY, Wan OYK, Cheung RYK, Chung TKH, Chan SSC Ultrasound Obst Gyn 2015;45(6): 728 - 733
30
A Pilot Study of Urine Cytokines in Ketamine-associated Lower Urinary Tract Symptoms. Cheung RYK, Lee JHS, Chan SSC, Lui WT, Choy KW Int Urogynecol J 2014;25(12): 1715 - 1719
31
Effect of Levator Ani Muscle Injury on Primiparous Women during the First Year after Childbirth. Chan SSC, Cheung RYK, Yiu AKW, Lee LLL, Chung TKH Int Urogynecol J 2014;25(10): 1381 - 1388
32
Inside-out Versus Outside-in Transobturator Tension-free Vaginal Tape: A 5-year Prospective Comparative Study. Cheung RYK, Chan SSC, Yiu AKW, Chung TKH Int J Urol 2014;21(1): 74 - 80
33
Pelvic Floor Biometry during a First Singleton Pregnancy and the Relationship with Symptoms of Pelvic Floor Disorders: a Prospective Observational Study. Chan SSC, Cheung RYK, Yiu AKW, Lee LLL, Leung TY, Chung TKH BJOG 2014;121(1): 121 - 129
34
Pelvic Floor Biometry in Chinese Primiparous Women 1 Year after Delivery: A Prospective Observational Study. Chan SSC, Cheung RYK, Yiu AKW, Lee LLL, Chung TKH Ultrasound Obst Gyn 2014;43(4): 466 - 474
35
Pelvic Floor Muscle Training Improves Quality of Life of Women with Urinary Incontinence: A Prospective Study. Fan HL, Chan SSC, Law SM, Cheung RYK, Chung TKH Aust NZ J Obstet Gyn 2013;53(3): 298 - 304
36
Prevalence of Urinary and Fecal Incontinence in Chinese Women during and after Their First Pregnancy. Chan SSC, Cheung RYK, Yiu AKW, Lee LLL, Chung TKH Int Urogynecol J 2013;24(9): 1473 - 1479
37
Risk of Malignancy in Women Who Underwent Hysterectomy for Uterine Prolapse. Wan OYK, Cheung RYK, Chan SSC, Chung TKH Aust NZ J Obstet Gyn 2013;53(2): 190 - 196
38
Tension-free Vaginal Mesh for the Treatment of Pelvic Organ Prolapse in Chinese Women. Fan HL, Chan SSC, Cheung RYK, Chung TKH Hong Kong Med J 2013;19(6): 511 - 517
39
Responsiveness of the Pelvic Floor Distress Inventory and Pelvic Floor Impact Questionnaire in Women Undergoing Treatment for Pelvic Floor Disorders. Chan SSC, Cheung RYK, Lai BPY, Lee LLL, Choy KW, Chung TKH Int Urogynecol J 2013;24(2): 213 - 221
40
A Pilot Study on Sexually Transmitted Diseases and High Risk Sexual Behaviour in Hong Kong Female Ketamine Users. Lee JHS, Cheung RYK, Chan SSC, Pang WL, Chung TKH HK Pract 2012;34(4): 132 - 138
41
Prevalence of Levator Ani Muscle Injury in Chinese Women after First Delivery. Chan SSC, Cheung RYK, Yiu AKW, Lee LLL, Pang WL, Choy KW, Leung TY, Chung TKH Ultrasound Obst Gyn 2012;39(6): 704 - 709
42
Quality of Life in Women with Urinary Incontinence is Impaired and Comparable to Women with Chronic Diseases. Cheung RYK, Chan SSC, Yiu AKW, Lee LLL, Chung TKH Hong Kong Med J 2012;18(3): 214 - 220
43
Symptoms, Quality of Life, and Factors Affecting Women's Treatment Decisions Regarding Pelvic Organ Prolap. Chan SSC, Cheung RYK, Yiu AKW, Lee LLL, Pang WL, Chung TKH Int Urogynecol J 2012;23(8): 1027 - 1033
44
The Risk of Preterm Delivery Prior to 34 Weeks in Women Presenting with Antepartum Haemorrhage of Unknown Origin. Yeung SW, Tam WH, Cheung RYK Aust NZ J Obstet Gyn 2012;52(2): 167 - 172
45
Chinese Validation of Pelvic Floor Distress Inventory and Pelvic Floor Impact Questionnaire. Chan SSC, Cheung RYK, Yiu AKW, Li JCM, Lai BPY, Choy KW, Chung TKH Int Urogynecol J 2011;22(10): 1305 - 1312
46
Laparoscopic Sacrocolpopexy for the Treatment of Vaginal Vault Prolapse: with or without Robotic Assistance. Chan SSC, Pang MW, Cheung TH, Cheung RYK, Chung TKH Hong Kong Med J 2011;17(1): 54 - 61
47
Urinary Symptoms and Impaired Quality of Life in Female Ketamine Users: Persistence after Cessation of Use. Cheung RYK, Chan SSC, Lee JHS, Pang WL, Choy KW, Chung TKH Hong Kong Med J 2011;17(4): 267 - 273
48
Chinese Validation of Urogenital Distress Inventory and Incontinence Impact Questionnaire Short Form. Chan SSC, Choy KW, Lai BPY, Pang MW, Yip SK, Lee LLL, Cheung RYK, Yiu AKW, Chung TKH Int Urogynecol J 2010;21(7): 807 - 812